EP 0593249 A3 19941012 - Magnetooptic information recording method.
Title (en)
Magnetooptic information recording method.
Title (de)
Methode zur Aufzeichnung magnetooptischer Information.
Title (fr)
Méthode d'enregistrement d'information magnéto-optique.
Publication
Application
Priority
JP 27904892 A 19921016
Abstract (en)
[origin: EP0593249A2] A light beam modulated according to a data signal to be recorded is irradiated to a magnetooptical recording medium while moving the recording medium. During a series of recording operations, a predetermined recording area of the recording medium is heated to a temperature of a second temperature T2 or higher in accordance with the data signal and at least a part of the area heated to the temperature of second temperature T2 or higher is once cooled down to a temperature of a third temperature T3 or lower. Then, it is heated to a temperature of a first temperature T1 or higher. Thus, the recording medium is locally heated or cooled, so that recording of information is performed. <IMAGE>
IPC 1-7
IPC 8 full level
G11B 11/10 (2006.01); G11B 7/125 (2006.01); G11B 7/126 (2012.01); G11B 11/105 (2006.01)
CPC (source: EP US)
G11B 7/126 (2013.01 - EP US); G11B 11/10519 (2013.01 - EP US); G11B 11/1053 (2013.01 - EP US); G11B 11/10584 (2013.01 - EP US); G11B 11/10506 (2013.01 - EP US); G11B 11/10586 (2013.01 - EP US)
Citation (search report)
- [A] EP 0481786 A2 19920422 - CANON KK [JP]
- [AX] EP 0477701 A2 19920401 - NIPPON KOGAKU KK [JP]
- [A] EP 0352548 A2 19900131 - SONY CORP [JP]
- [A] EP 0285461 A2 19881005 - MITSUBISHI ELECTRIC CORP [JP]
- [AX] PATENT ABSTRACTS OF JAPAN vol. 14, no. 569 (P - 1144) 18 December 1990 (1990-12-18)
- [A] "THERMOMAGNETIC RECORDING MEDIUM FOR A DIRECT-OVERWRITE RECORDING SYSTEM", IBM TDB, vol. 32, no. 4A, September 1989 (1989-09-01), pages 384 - 386, XP000039916
- [A] NAKAKI ET AL.: "INITIALIZING PROCESS ON DIRECT OVERWRITE METHOD USING EXCHANGE-COUPLED QUADRI-LAYERED MAGNETO-OPTICAL FILM", IEEE TRANSACTIONS ON MAGNETICS, vol. 26, no. 5, September 1990 (1990-09-01), NY US, pages 1900 - 1902, XP000150466
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0593249 A2 19940420; EP 0593249 A3 19941012; EP 0593249 B1 19990428; DE 69324644 D1 19990602; DE 69324644 T2 19991014; JP H06131722 A 19940513; US 5751669 A 19980512
DOCDB simple family (application)
EP 93308100 A 19931012; DE 69324644 T 19931012; JP 27904892 A 19921016; US 66691896 A 19960619